RU2010110616A - METHOD FOR ECONOMIC SECONDARY SCALING - Google Patents
METHOD FOR ECONOMIC SECONDARY SCALING Download PDFInfo
- Publication number
- RU2010110616A RU2010110616A RU2010110616/02A RU2010110616A RU2010110616A RU 2010110616 A RU2010110616 A RU 2010110616A RU 2010110616/02 A RU2010110616/02 A RU 2010110616/02A RU 2010110616 A RU2010110616 A RU 2010110616A RU 2010110616 A RU2010110616 A RU 2010110616A
- Authority
- RU
- Russia
- Prior art keywords
- hot rolling
- steel strips
- entrance
- carried out
- nozzles
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract 19
- 239000010959 steel Substances 0.000 claims abstract 19
- 238000005098 hot rolling Methods 0.000 claims abstract 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 15
- 230000004907 flux Effects 0.000 claims abstract 8
- 239000002184 metal Substances 0.000 claims abstract 4
- 238000001816 cooling Methods 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 claims 2
- 238000007796 conventional method Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
1. Способ вторичного удаления окалины с металлических полос, в частности перемещающихся во время горячей прокатки стальных полос, путем подачи воды на их поверхность посредством коллекторов с соплами, подающих воду под давлением, отличающийся тем, что в соплах создают низкое гидравлическое давление, не превышающее 30 бар, а указанные сопла регулируют таким образом, чтобы плотность теплового потока (HF), выходящего из полосы в результате охлаждения ее поверхности подаваемой водой, была аналогична плотности теплового потока, достигаемой при известном способе удаления под высоким давлением. ! 2. Способ по п.1, отличающийся тем, что плотность выходящего из полосы теплового потока (HF) составляет от 6,5 до 20 МВт/м2 при температуре полосы от 900 до 1100°С. ! 3. Способ по п.1, отличающийся тем, что плотность теплового потока составляет от 10 до 11 МВт/м2 при температуре полосы от 900 до 1100°С. ! 4. Способ по любому из пп.1-3, отличающийся тем, что в соплах создают гидравлическое давление от 3 до 10 бар. ! 5. Способ по любому из пп.1-3, отличающийся тем, что его осуществляют на входе в чистовые клети стана для горячей прокатки стальных полос. ! 6. Способ по п.4, отличающийся тем, что его осуществляют на входе в чистовые клети стана для горячей прокатки стальных полос. ! 7. Способ по любому из пп.1-3, 6, отличающийся тем, что его осуществляют на входе в черновые клети стана для горячей прокатки стальных полос. ! 8. Способ по п.4, отличающийся тем, что его осуществляют на входе в черновые клети стана для горячей прокатки стальных полос. ! 9. Способ по п.5, отличающийся тем, что его осуществляют на входе в черновые клети стана для горячей прокатки стальных полос. ! 10. Сп 1. A method of secondary descaling from metal strips, in particular those moving during hot rolling of steel strips, by supplying water to their surface by means of collectors with nozzles supplying water under pressure, characterized in that a low hydraulic pressure is created in the nozzles, not exceeding 30 bar, and these nozzles are adjusted so that the heat flux (HF) exiting the strip as a result of cooling its surface by the supplied water is similar to the heat flux achieved with the known high pressure removal method. ! 2. A method according to claim 1, characterized in that the density of the heat flux (HF) leaving the strip is 6.5 to 20 MW / m2 at a strip temperature of 900 to 1100 ° C. ! 3. The method according to claim 1, characterized in that the heat flux density is from 10 to 11 MW / m2 at a strip temperature from 900 to 1100 ° C. ! 4. A method according to any one of claims 1 to 3, characterized in that a hydraulic pressure of 3 to 10 bar is generated in the nozzles. ! 5. A method according to any one of claims 1 to 3, characterized in that it is carried out at the entrance to the finishing stands of a hot rolling mill for steel strips. ! 6. The method according to claim 4, characterized in that it is carried out at the entrance to the finishing stands of a hot rolling mill for steel strips. ! 7. A method according to any one of claims 1 to 3, 6, characterized in that it is carried out at the entrance to the roughing stands of a hot rolling mill for steel strips. ! 8. The method according to claim 4, characterized in that it is carried out at the entrance to the roughing stands of the hot rolling mill for steel strips. ! 9. The method according to claim 5, characterized in that it is carried out at the entrance to the roughing stands of the hot rolling mill for steel strips. ! 10. Cn
Claims (19)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07291027.6 | 2007-08-21 | ||
| EP07291027A EP2028290A1 (en) | 2007-08-21 | 2007-08-21 | Method and device for secondary descaling steel strip with low pressure water jets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2010110616A true RU2010110616A (en) | 2011-09-27 |
| RU2441725C2 RU2441725C2 (en) | 2012-02-10 |
Family
ID=39002981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2010110616/02A RU2441725C2 (en) | 2007-08-21 | 2008-08-20 | Cost-efficient method of secondary descaling |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US10378115B2 (en) |
| EP (2) | EP2028290A1 (en) |
| JP (1) | JP5150888B2 (en) |
| KR (1) | KR101240100B1 (en) |
| CN (1) | CN101821429B (en) |
| AU (1) | AU2008320723B2 (en) |
| BR (1) | BRPI0815716B1 (en) |
| ES (1) | ES2618498T3 (en) |
| MX (1) | MX2010001998A (en) |
| PL (1) | PL2185747T3 (en) |
| RU (1) | RU2441725C2 (en) |
| UA (1) | UA97853C2 (en) |
| WO (1) | WO2009056712A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5136609B2 (en) | 2010-07-29 | 2013-02-06 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet excellent in formability and impact resistance and method for producing the same |
| DE102012214298B4 (en) | 2012-08-10 | 2025-02-27 | Sms Group Gmbh | Method for cleaning and/or descaling a slab or a preliminary strip by means of a scale washer and scale washer |
| FR3024058B1 (en) * | 2014-07-23 | 2016-07-15 | Constellium France | METHOD AND EQUIPMENT FOR COOLING |
| CN112139335B (en) * | 2020-09-09 | 2022-02-01 | 山东钢铁集团日照有限公司 | Preparation method of high-corrosion-resistance easy-to-weld hot-pressed part |
| CN113751410B (en) | 2021-09-14 | 2022-07-22 | 山东钢铁集团日照有限公司 | Hot bath forming process for high-corrosion-resistance and easy-welding hot-pressed parts |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3054162A (en) * | 1957-02-16 | 1962-09-18 | August Seuthe Maschf | Method and apparatus for descaling strip material, especially strip iron |
| US3174491A (en) * | 1963-10-23 | 1965-03-23 | Kolene Corp | Molten salt spray apparatus for descaling stainless steel |
| NL131553C (en) * | 1965-05-28 | 1900-01-01 | ||
| US3779054A (en) | 1972-03-02 | 1973-12-18 | Wean United Inc | Coolant control for hot strip mill |
| JPS5831247B2 (en) | 1980-12-17 | 1983-07-05 | 株式会社神戸製鋼所 | Descaling equipment for hot rolled steel plates |
| US4507949A (en) * | 1982-02-12 | 1985-04-02 | Republic Steel Corporation | Apparatus for cooling a hot-rolled product |
| JPS5976615A (en) * | 1982-10-25 | 1984-05-01 | Nippon Steel Corp | Method and device for descaling steel material in low pressure |
| JPS6061114A (en) | 1983-09-13 | 1985-04-08 | Sumitomo Metal Ind Ltd | Rolling method of free-cutting steel |
| JPS60184409A (en) * | 1984-03-02 | 1985-09-19 | Sumitomo Metal Ind Ltd | Standard rolling method for seamless steel pipes |
| US4617815A (en) * | 1984-12-24 | 1986-10-21 | Wean United, Inc. | Apparatus for descaling hot strip in a rolling mill |
| JPS61269925A (en) * | 1985-05-24 | 1986-11-29 | Kawasaki Steel Corp | Descaling method in hot rolling |
| JP2585529B2 (en) | 1986-04-14 | 1997-02-26 | 株式会社日立製作所 | Method and apparatus for reducing the thickness of hot slabs |
| JPH0763751B2 (en) * | 1987-01-24 | 1995-07-12 | 株式会社日立製作所 | Hot rolling line |
| JPH07115060B2 (en) * | 1992-01-07 | 1995-12-13 | 新日本製鐵株式会社 | Descaling method for steel |
| EP0586823B1 (en) * | 1992-07-31 | 1997-10-01 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Descaling device employing water |
| US5272798A (en) * | 1992-08-05 | 1993-12-28 | Kolene Corporation | Method and apparatus for descaling metal strip |
| JPH07171610A (en) | 1993-10-26 | 1995-07-11 | Sumitomo Metal Ind Ltd | Method and apparatus for rolling hot-rolled steel sheet |
| JP2897652B2 (en) | 1994-09-05 | 1999-05-31 | 住友金属工業株式会社 | Mandrel mill and tube rolling method using the same |
| AUPM826394A0 (en) * | 1994-09-20 | 1994-10-13 | Bhp Steel (Jla) Pty Limited | Descaling metal strip |
| JP3390584B2 (en) * | 1995-08-31 | 2003-03-24 | 川崎製鉄株式会社 | Hot rolled steel sheet and method for producing the same |
| CN1079303C (en) * | 1995-10-11 | 2002-02-20 | 日新制钢株式会社 | Method for removing scale from heavy-duty rolled steel strip |
| JP3094911B2 (en) * | 1996-04-11 | 2000-10-03 | 住友金属工業株式会社 | Descaling method of hot rolled steel sheet |
| JPH10128425A (en) * | 1996-10-31 | 1998-05-19 | Nippon Steel Corp | Descaling method |
| JPH1147820A (en) * | 1997-08-04 | 1999-02-23 | Nireco Corp | Slab cut surface descaler and descaler / marker using the same |
| US6582586B1 (en) | 1999-01-26 | 2003-06-24 | Nippon Steel Corporation | Method of removing scales and preventing scale formation on metal materials and apparatus therefor |
| JP2000246325A (en) * | 1999-02-24 | 2000-09-12 | Mitsubishi Heavy Ind Ltd | Device and method for preventing scale flaw at hot rolling |
| DE19938705A1 (en) * | 1999-08-14 | 2001-02-15 | Sms Demag Ag | Descaling device for a continuously cast metal strip |
| JP3491605B2 (en) * | 2000-07-14 | 2004-01-26 | 住友金属工業株式会社 | Manufacturing method and equipment for hot rolled steel sheet with excellent surface properties |
| DE10110324A1 (en) * | 2001-03-03 | 2002-09-05 | Sms Demag Ag | Process for descaling tapes |
| DE10143868A1 (en) * | 2001-09-07 | 2003-03-27 | Sms Demag Ag | Device for removing loose cinder from the surface of a thin slab of a mini mill has a spray unit arranged before a temperature compensation oven and connected to a water supply |
| DE10146113A1 (en) * | 2001-09-19 | 2003-04-03 | Sms Demag Ag | Spray bar for a hydraulic descaling system |
-
2007
- 2007-08-21 EP EP07291027A patent/EP2028290A1/en not_active Withdrawn
-
2008
- 2008-08-20 PL PL08843858T patent/PL2185747T3/en unknown
- 2008-08-20 BR BRPI0815716-2A patent/BRPI0815716B1/en active IP Right Grant
- 2008-08-20 UA UAA201003056A patent/UA97853C2/en unknown
- 2008-08-20 ES ES08843858.5T patent/ES2618498T3/en active Active
- 2008-08-20 RU RU2010110616/02A patent/RU2441725C2/en active
- 2008-08-20 US US12/674,165 patent/US10378115B2/en active Active
- 2008-08-20 CN CN2008801096273A patent/CN101821429B/en active Active
- 2008-08-20 AU AU2008320723A patent/AU2008320723B2/en active Active
- 2008-08-20 WO PCT/FR2008/001200 patent/WO2009056712A2/en not_active Ceased
- 2008-08-20 KR KR1020107006056A patent/KR101240100B1/en active Active
- 2008-08-20 MX MX2010001998A patent/MX2010001998A/en active IP Right Grant
- 2008-08-20 JP JP2010525383A patent/JP5150888B2/en active Active
- 2008-08-20 EP EP08843858.5A patent/EP2185747B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| AU2008320723A1 (en) | 2009-05-07 |
| KR20100058573A (en) | 2010-06-03 |
| CN101821429A (en) | 2010-09-01 |
| EP2185747A2 (en) | 2010-05-19 |
| BRPI0815716B1 (en) | 2021-03-30 |
| EP2185747B1 (en) | 2016-12-21 |
| WO2009056712A2 (en) | 2009-05-07 |
| PL2185747T3 (en) | 2017-06-30 |
| KR101240100B1 (en) | 2013-03-07 |
| EP2028290A1 (en) | 2009-02-25 |
| JP5150888B2 (en) | 2013-02-27 |
| JP2010536581A (en) | 2010-12-02 |
| AU2008320723B2 (en) | 2012-03-29 |
| CN101821429B (en) | 2012-05-30 |
| MX2010001998A (en) | 2010-05-27 |
| WO2009056712A3 (en) | 2009-07-16 |
| US10378115B2 (en) | 2019-08-13 |
| UA97853C2 (en) | 2012-03-26 |
| BRPI0815716A2 (en) | 2015-02-10 |
| US20110146706A1 (en) | 2011-06-23 |
| ES2618498T3 (en) | 2017-06-21 |
| WO2009056712A8 (en) | 2010-03-18 |
| RU2441725C2 (en) | 2012-02-10 |
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